Explicitly disable AVX on a bunch of tests so they won't fail on AVX machines post r192171.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192173 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a typo in the mattr part of the run line.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192174 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unneeded MMX instruction definition by moving pattern to an equivalent instruction definition and removing the filtering from the disassembler table building.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192175 91177308-0d34-0410-b5e6-96231b3b80d8